Kotaey



Jan. 27, 1931. s, AL v r 1,790,512

ROTARY BOLT LOCK Filed on. 29,' 1925 2 Sheets-Sheet 1 24 l INVENTOR.

29 -19- M 5 4/ 7 ATTORNEYS.

2 Shee'ias-Sheet 2 IN VEN TOR.

5 8 2V4 1 r, I w m 1 M 3 M b m A TTORNEYS.

Jan. 27, 1931.

s. SEGAL ROTARY BOLT LOCK Filed Oct. 29, 1925 but showing the parts in the position which Patented Jan. 27, 1931 burrs ES ars nr cri ics SAMUEL SIlG-AL, OF NEW YORK, N. Y., ASSIGNOB 'JJQ SEC-AL "LOCK & IIARDJTARE GOM- PAITY, ENG, OE NEKVYORK, Y., A GORPOEATEGN OF NEW YORK no'rna'r non: Loon Application filed Sctobcr 33, 1925.

This invention relates to an improved type of rotary bolt lock.

It is an object of the invention to provide an improved device of this character which may be forced or jimmied only with extreme difficulty, but which may be readily operated over long periods of time with'freedom from mechanical difiiculty.

It is an additional object to provide a device which will eiiiciently perform the purposes for which it is intended, and which will also be economically and readily manufactured and easily assembled.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

Figure 1 is a side elevation of one form of lock embodying the improved construction of the present invention, certain portions of the case being broken away and the 'mechanism being shown in retracted position;

Fig. 2 is a fr'ont'view of the look as shown in Fig. 1; a j

Fig. 3 is a view similar to Fig. 1, but showing certain of the parts in section and with the bolt partially projected; 1

Fig. 4 is a view similar to Fig. 3 and showing the bolt completely projected;

Fig. 5 is a view corresponding to Fig. 2,

they have assumed in Fig.4;

Fig. 6 is a sectional View taken on the lines 6-6 and in the direction of the arrows in Fig. 1; I

Fig. 7 is a view similar to Fig. 1, but showing a slightly different form of loch;

Fig. 8 illustrates this latter form of lock with the bolts thereof projected;

Fig. 9 is a front View of this lock as shown Serial No. 65,513.

in Fig; 7 (the position which the parts assume when thrown being indicated in dotted lines) and Fig. 10 is a sectional view taken on the lines l010 and in the direction of the arrows indicated in Fig. 8. r

In these several views the numeral 15 indicates the lock casing, which may be of any desirable shape and material. Mounted to ex tend within this casing is a. shaft 16, to which a crank arm 17 is attached, the movements of which are limited preferably by means of a stop 18, which may form an integral part of the casing and extend from the inner face thereof.

- l/Vithin each casing a pair of spaced tracks or guides 19 are provided, these guides preferably forming a part of the case casting,

and a carriage 20 is slidably'mounted between these tracks. For a purpose hereinafter brought out, these tracks preferably terminate at a point short of the inner and forward face of the casing, so that spaces 19 are provided at these points.

In order to effect, a projection and retracited extent upon the tracks 19 and is in line with an opening in the front edge of the casing 15. The bolt body is formed in the dc scribed exemplification with two bores, and a pair of tubes 23 are mounted one within each of these bores, the outer ends of these tubes terminating in enlarged and oblong head-portions 2d lying beyond the outer edge of the bolt bod ,the inner ends of the tubes entendinglbeyond the inner edge thereof.

In order'to actuate the bolts provided by the head-portions of. these tubes, the carriage 20 carriesin the present instance a pair of pins 25, which are'formed with spirally-extending and parallel grooves 26. These pins, in the position of the parts shown in Figs. 1 and 2, have their inner ends within the tubes, and the latt r are each provided with a screw 27 or other suitable element extending into the grooves 26. Furthermore, one of the tubes is formed adjacent its rear end with a projection the second of the tubes being formed with a similar projection 29, and in the posi ion or the parts referred to the former projection lies adjacent the inner edge of the uppermost track 19, while the latter projection lies adjacent the outer face of the lower track member.

it will be appreciated that in this form of lock, with the parts disposed as shown in Figs. 1 and 2, if the shalt 16 is turned by means of the knob attached thereto the cranl: 17 will. be correspondingly moved and the carriage 20 will be projected along the tracks 19. At this time it will be noted that the lock, in addition to being knob-operated, may be key-actuated in any desirable manner. Such projection of the carriage 20 will obviously result in the forward edge of the dead-bolt being projected to a point beyond the casing, as in Fig. 3, and entering a keeper (not shown). During such projection the bolts provided by the enlarged heads 24 will not turn vith respect to the deadbolt, due to the fact that the turning tendency exerted thereon by means of the spiral grooves 26 and the screws 27 will be prevented, incident to the engagement of the projections 28 and 29 with the tracks, as in Fig. 6. However, upon the bolts reaching the position shown in 8 it will be apparent that the projections 2 and 29 will engage the inner face of the easing, and, as a consequence, a further projection of the bolts will be prevented. However, the carriage 20 will continue to move forward, and, as a consequence, the pins 25 will be projected within the tubes 23 so that the grooves 26 of the former will act through the screws to turn the tubes. Such turning will be allowed in this position of the parts due to the fact that the projections are now in line with the spaces 19 and are thus not restrained against movement. As result, the heads 24 will swing to a position such as has been shown in Fig. 5, and if the keeper termed with an inwardlyextending lip it will be understood that, in addition to the lock provided by the dead-bolt, the heads 24: will act to prevent any forcible retraction of the bolt.

Referring to the second "arm of lock shown in Figs. 7 to 10 inclusive, it will be observed that the carriage 30 carries pins 31 formed with spiral grooves 32, white grooves, contrary to the grooves 26, are disposed in op posed relationship, and these pins extend into the rear ends of tubes 33. The tubes are -termed with enlarged heads 34; and do not, in the present or; mplification, form part c" a separate dead-loclz-bolt. Projections extend from the tube bodies adjacent the rear ed es thereof and are adapted to ride one against each of the side faces of the tracks 1.9; and it will finally be noted that in this form of lock the tubes carry elements as, for example, screws 36, which enter the grooves 32.

in operation, upon the carriage being proted by means of a key mechanism, or through the medium of a hand knob, the pins will force the bolts outwardl beyond the forward edge of the casing. During such movement the bolts will not turn, incident to the "act the pro ections engage the t Th outward movement of the bolts is limited, as in the preceding form of lock, by the projections coming in contact with the front inner face of the lock casing, whereupon-and by virtue of the fact that these arojecticns are in line with the spaces 19' he tubes may rotate so that the enlarged cad thereof assume a position such as has iown in 9. Thus, the bolt shanl's ..e act a dead-lock, and the enthereof prevent tl eir forcible frm the keeper. in assembli ig this type of lock it will be noted that the element 36 forms an integral part of the tube, or if desired for some reason, the grooves 32 mayas in Fig. 7be continued beyond the forward edges of the pins so that the element 36 may properly slip into the groove upon the tube being slipped around the pin.

in both the illustrated forms of loci: it will be understood that a retraction the bolts effected by simply retracting the carriage. During the initial stages of such retraction the projections which are associated with the tubes will engage the forward edges of the tracks 19, and a result of the spiral grooves the tubes will. turn until the projections clear the tracks. 'lhereupon the bolts will be bodily retracted.

. hus, among others, the objects speci "callv atoreinentionoi are accomplished, and since certain changes may be made in the above construction, and different embodiments of the invention could be made, vithout departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all or" the generic and specific features oi the invention herein described and all statements of the scope of the invention which as a matter oi language might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A lock, including a pair of members arranged one behind the other and having their 7, M An,-

adjacent ends telescopically disposed, one of said members providing a bolt, ahead secured to the outer end thereof, actuating means connected with the other of said members for projecting both of the same, one of said members having one of its faces formed with a spirallyextending groove, a projection ex tending from the second of said members and lying within the groove, means for limiting the projection of the bolt member, and means for preventing a illlllllll thereof during certain of its stages of projection.

, 2. A look, including a tube providing a, belt, a head secured to the outer end thereof,

a rod arranged beyond the rear of said tube and having its outer end telescopically disposed within the bore of the same, said rod corresponding in cross section to the tube, means forming a part of said tube and rod resulting in a rotation of said bolt when said rod is axially moved with respect to said tube, means for axially moving said rod, means for limiting the axial movement of the tube, and means for preventing a turning thereof during certain stages of its axial movement.

3. A lock, including a tubehaving a sub stantially cylindrical bore and pro -liding a bolt, ahead secured to the outer end thereof,

a substantially round rod arranged to the rear of said tube and having its outer end telescopica-lly'disposed Within the tube bore, said rod having a spirally-extending formed in its face, a pin carried by saidtube and riding within said groove, means for axially moving said rod, means for limiting the axial movement of said tube, and means for preventing rotation of said tube during certain of its stages of axial movement.

4:. A lock, including, in combination, two pairs of telescoping members, one of the members of each pair providing a bolt, a head at the outer ends of each of said members, means connected with the other of the members for projecting both of the same, one of the members of each pair being formed with a spirally-extending groove, a projection ex tending from the second of the members of each pair and lying within the grooves, means for limiting the projection of the bolt members, means for preventing a turning thereof during certain of their stages of projection, and means connecting both pairs of members to act in synchronism.

' 5. A look, including a case, a dead-bolt movable to extend beyond said case, a tube rotatably mounted within the bore formed in said dead-bolt, a head at the outer end of said tube and beyond the forward edge of said bolt, means movable axially within the tube bore for turning the same, means for projecting and retracting said last-named means, means for limiting the projection of said bolt and tube, and means acting during certain stages of the projection of said bolt to prevent a turning thereof.

.riage slidably disposed upon said gro ove 6. A lock, including, in combination, a case, a dead-bolt movable to extend beyond said case, a tube rotatably mounted within a bore formedin said dead bolt, a headsecured to the-outer'end of said'tube and beyond the forward edge of said bolt, the inner end of said tube extending beyond the-rear edge of said bolt, means carried by such rear end and cooperating with the lock case to limit the projection of said bolt and tube, means associated with said tube for projecting the latter and said dead-bolt and for turning said tube, and means operating durin certain of'the stages of projection of sai tube for preventing such turning.

7. A look including a casing, track portions forming a part of said casing, a carportions, means connected to the carriage for shifting the same, a rod member, a tube member, said members being arranged one behind the other and having their adjacent ends telescopically disposed, a head secured to the outer end of the outermost member, the inner end of the innermost member being secured to said carriage, a groove formed in one of saidmembers and a projecting part associated with the other of said members and extending into said groove to cause a relative turning of said members and means preventing, under certain stages of projection of the members, such turning.

8. A lock including a casing formed with track portions, a carriage slidably mounted upon said track portions, a rod fixedly secured to said carriage and formed with a spirally extending groove, a tube beyond said rod and having its inner end telescopically accommodating the outer end of the rod, a head at the outer end of said tube and means associated with said tube and extending into the spiral groove of said rod to assure a turning of said tube.

' 9. A look including a casing formed with track portions, a carriage slidably mounted upon said track portions, a rod fixedly secured tosaid carriage and formed with a spirally extending groove, a tube beyond said rod and having its inner end telescopically accommodating the outer end of the rod, a head at the outer end of said tube, said tracks having an interrupted portion, a projection forming a part of said tube and lying adjacent said track to ride into the interrupted portion thereof and'permit a turning of said 7 tube and means associated with saidtube and extending into the spiral groove of said rod to assure a turning of the tube.

10. A lock including a casing formed with track portions, a carriage slidably mounted upon said track portions, a rod fixedly secured to said carriage and formed with a spirally extending groove, a tube beyond said rod and having its inner end telescopically accommodating the outer end of the rod, a

head at the outer end of said tube, said tracks having an interrupted portion, a projection forming a part of said tube and lying adjacent said track to ride into the interrupted portion thereof and permit a turningof said tube, means associated with said tube and extending into the spiral groove of said rod to assure a turning of the tube, a dead-bolt encircling said tube and providing a mounting therefor and means for preventing an axial shifting of said tube With respect to said dead-bolt said dead-bolt being projectable beyond said casing.

In testimony whereof I afiix my signature.

SAMUEL SEGAL. 

